/**
 * Copyright 2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.xume.raob.core;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.xume.raob.exceptions.InvocationException;

/**
 * @author Johan Siebens
 */
public class PostBuildMethod {

	private Method method;

	private Object target;

	public PostBuildMethod(Method method, Object target) {
		this.method = method;
		this.target = target;
	}

	public Object execute(Object... args) {
		try {
			return method.invoke(target, args);
		} catch (InvocationException e) {
			throw e;
		} catch (InvocationTargetException e) {
			throw translateInvocationTargetException(e);
		} catch (Exception e) {
			throw new InvocationException("Failed to invoke method [" + method + "]", e);
		}
	}

	private InvocationException translateInvocationTargetException(InvocationTargetException e) {
		Throwable targetException = e.getTargetException();
		if (targetException instanceof InvocationException) {
			return (InvocationException) targetException;
		} else {
			return new InvocationException("Failed to invoke method [" + method + "]", e);
		}
	}

}
